EP0193326A3 - Method for lowering the formaldehyde content in a glued timber board - Google Patents

Method for lowering the formaldehyde content in a glued timber board Download PDF

Info

Publication number
EP0193326A3
EP0193326A3 EP86301079A EP86301079A EP0193326A3 EP 0193326 A3 EP0193326 A3 EP 0193326A3 EP 86301079 A EP86301079 A EP 86301079A EP 86301079 A EP86301079 A EP 86301079A EP 0193326 A3 EP0193326 A3 EP 0193326A3
Authority
EP
European Patent Office
Prior art keywords
lowering
formaldehyde content
timber board
glued timber
board
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP86301079A
Other languages
German (de)
French (fr)
Other versions
EP0193326A2 (en
Inventor
Pertti Einari Pekkinen
Antti Samuli Maenpaa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wilh Schauman Oy AB
Original Assignee
Wilh Schauman Oy AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wilh Schauman Oy AB filed Critical Wilh Schauman Oy AB
Publication of EP0193326A2 publication Critical patent/EP0193326A2/en
Publication of EP0193326A3 publication Critical patent/EP0193326A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
    • B27N1/00—Pretreatment of moulding material
    • B27N1/003—Pretreatment of moulding material for reducing formaldehyde gas emission

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)

Abstract

Method for lowering the formaldehyde content in a timber board (10) by into the board absorbing a solution (4) that contains ammonia by compressing by means of a resilient-faced grooved revolving roll (1).
EP86301079A 1985-02-18 1986-02-17 Method for lowering the formaldehyde content in a glued timber board Withdrawn EP0193326A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI850663A FI73169C (en) 1985-02-18 1985-02-18 Procedure for lowering the formaldehyde content in glued wood board.
FI850663 1985-02-18

Publications (2)

Publication Number Publication Date
EP0193326A2 EP0193326A2 (en) 1986-09-03
EP0193326A3 true EP0193326A3 (en) 1987-10-28

Family

ID=8520398

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86301079A Withdrawn EP0193326A3 (en) 1985-02-18 1986-02-17 Method for lowering the formaldehyde content in a glued timber board

Country Status (2)

Country Link
EP (1) EP0193326A3 (en)
FI (1) FI73169C (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1060024A (en) * 1964-09-24 1967-02-22 Casco Ab Improvements in or relating to methods and devices for applying liquid to porous products
DE3431709A1 (en) * 1984-08-29 1986-04-24 Helmut Dr. 6052 Mühlheim Bayer Process for eliminating formaldehyde from wood materials

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1060024A (en) * 1964-09-24 1967-02-22 Casco Ab Improvements in or relating to methods and devices for applying liquid to porous products
DE3431709A1 (en) * 1984-08-29 1986-04-24 Helmut Dr. 6052 Mühlheim Bayer Process for eliminating formaldehyde from wood materials

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ADHÄSION, vol. 26, no. 3, March 1982, pages 18-23, Berlin, DE; E. ROFFAEL et al.: "Nachträgliche Behandlung von Spanplatten zur Verminderung ihres Formaldehydabgabepotentials" *

Also Published As

Publication number Publication date
FI73169C (en) 1987-09-10
FI850663L (en) 1986-08-19
FI73169B (en) 1987-05-29
EP0193326A2 (en) 1986-09-03
FI850663A0 (en) 1985-02-18

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Inventor name: MAENPAA, ANTTI SAMULI

Inventor name: PEKKINEN, PERTTI EINARI